#!/usr/bin/python
# -*- coding: UTF-8 -*-

"""
Kalendereinträge für Alarmierungen

@author: baderj
@author: Norbert Jahn
@author: Bastian Schroll

@requires: icalendar https://pypi.org/project/icalendar/
@requires: dateutil https://github.com/dateutil/dateutil/
@requires: pytz https://pypi.org/project/pytz/

"""

import logging # Global logger
import time
import requests
import re
from icalendar import Calendar, Event
from datetime import datetime, timedelta
import pytz 

from includes import globalVars  # Global variables
from includes.helper import configHandler




##
#
# onLoad (init) function of plugin
# will be called one time by the pluginLoader on start
#
def onLoad():
	"""
	While loading the plugins by pluginLoader.loadPlugins()
	this onLoad() routine is called one time for initialize the plugin

	@requires:  nothing

	@return:    nothing
	"""
	# nothing to do for this plugin
	return


##
#
# Main function of MySQL-plugin
# will be called by the alarmHandler
#
def run(typ,freq,data):
	"""
	This function is the implementation of a Calendar-Plugin
	It will write Alarms in an ics-File.

	@type    typ:  string (FMS|ZVEI|POC)
	@param   typ:  Typ of the dataset for sending to BosMon
	@type    data: map of data (structure see readme.md in plugin folder)
	@param   data: Contains the parameter for dispatch to BosMon.
	@type    freq: string
	@keyword freq: frequency is not used in this plugin

	@requires: 

	@return:    nothing
	"""
	try:
		if configHandler.checkConfig("2calendar"): #read and debug the config

			try:
				#
				# Kalender instanzieren
				#
				logging.debug("Kalender wird instanziert")
				cal = Calendar()
				cal.add('proid', 'BOS')
				cal.add('version', '2.0')
				
			except:
				logging.error("Kann Kalender nicht erstellen")
			else: 
				try:
					#
					# Erstelle das Event
					#
					logging.debug("Insert %s", typ)
	
					if typ == "ZVEI":
						
					
						g = open(globalVars.config.get("2calendar", "filepath2calendar")+'alle.ics','rb')
						gcal = Calendar.from_ical(g.read())

						for component in gcal.walk():
						
							if component.name == "VEVENT":
								
								logging.debug("Lese Event aus: "+component.get('SUMMARY') )
								event = Event()
								event.add('summary', component.get('SUMMARY'))
								print(component.get('SUMMARY'))
								event.add('dtstart', component.get('DTSTART'))
								print(component.get('DTSTART').dt)
								event.add('dtend', component.get('dtend'))
								print(component.get('dtend').dt)
								event.add('dtstamp', component.get('dtstamp'))
								print(component.get('dtstamp').dt)
								event.add('location', component.get('location'))
								print(component.get('LOCATION'))
								event['uid'] = component.get('UID')
								cal.add_component(event)
								
						g.close()
					
					
						timestamp = datetime.fromtimestamp(data["timestamp"])
						event = Event()
						event.add('summary', data["description"])        
						event.add('dtstart',timestamp)
						event.add('dtend',timestamp)
						event.add('dtstamp',timestamp)
						event.add('location', data["zvei"])
						event['uid'] = "{0}#{1}".format(timestamp,data["description"])
						cal.add_component(event)
						# logging.debug("Schreibe in ZVEI-spezifische-Datei")
						# with open(globalVars.config.get("2calendar", "filepath2calendar")+data["description"]+'.ics', 'wb') as f:
							# f.write(cal.to_ical())
						logging.debug("Schreibe in Gesamt-Datei")
						with open(globalVars.config.get("2calendar", "filepath2calendar")+'alle.ics', 'wb') as f:
							f.write(cal.to_ical())
					else:
						logging.warning("Nicht unterstützter Typ: %s", typ)
				except:
					logging.error("cannot Insert %s", typ)
					logging.debug("cannot Insert %s", typ, exc_info=True)
					return

		

	except:
		logging.error("unknown error")
		logging.debug("unknown error", exc_info=True)